Event has passed
Nassau Suffolk Trail Marathon & 15 Miler was held on May 17, 2026.
Get notified when registration opens for next year.

Trail Running
Nassau Suffolk Trail Marathon & 15 Miler
99 Quaker Meeting House Rd
Sun, May 17, 2026 at 07:30:00
About this event
Long Island has a rich and deep running culture. There are multiple events every weekend to choose from. However, runners that enjoy longer race distances or trail events have only a few options to choose from over the course of the entire year. This event will provide an opportunity for those that enjoy ultra or trail running to participate in a great event. A portion of the proceeds will benefit the Long Island Greenbelt Trail Conference, who help maintain the trails on Long Island.
Distances & pricing
See current pricing on the registration site →









